Mark, Thanks for the recommendation but ALWAYS keep the speed below the red or red-stripe. I also have set the plane’s settings to “No Damage”, but it keeps happening. I’ve been reporting the problem since the early versions. In one update, the problem was fixed, but returned again and continues. I now have over 200 hrs on the Citation Longitude. Funny thing… it works fine, straight and level, on AP with Heading Hold or no AP at all, just not AP with NAV hold. Regards, MIKE
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